/*
 * #!
 * Ontopia Navigator
 * #-
 * Copyright (C) 2001 - 2013 The Ontopia Project
 * #-
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * !#
 */

package net.ontopia.topicmaps.nav2.impl.framework;

import net.ontopia.utils.StringifierIF; 
import net.ontopia.topicmaps.core.TopicNameIF;

/**
 * INTERNAL: ...
 */
public class FirstUpperCaseStringifier implements StringifierIF {

  @Override
  public String toString(Object obj) {
    if (obj instanceof TopicNameIF) {
      TopicNameIF basename = (TopicNameIF) obj;
      String name_value = basename.getValue();
      if (name_value != null && name_value.length() > 0) {
        // return name_value.substring(0, 1).toUpperCase();
        return String.valueOf(Character.toUpperCase(name_value.charAt(0)));
      } else {
        return "";    
      }
    } else
      throw new IllegalArgumentException("FirstUpperCaseStringifier: Expected" +
                                         " instance of TopicNameIF.");
  }
  
}
